Polycom RealPresence 1800 Administration Manual page 355

Appendix - Secure Communication Mode
Polycom® RealPresence Collaboration Server can be configured to work in Secure Mode or Ultra Secure
Mode. For more information see
- Ultra Secure Mode.
In Secured mode the Collaboration Server and the RMX Web Client are configured to work with SSL/TLS.
In this mode, an SSL/TLS Certificate is installed on the MCU, setting the MCU Listening Port to secured port
443.
TLS is a cryptographic protocol used to ensure secure communications on public networks. TLS uses a
Certificate purchased from a trusted third party Certificate Authority to authenticate public keys that are used
in conjunction with private keys to ensure secure communications across the network.
The Collaboration Server supports:
● TLS 1.0
● SSL 3.0 (Secure Socket Layer)
SSL 3.0 utilizes 1024-bit RSA public key encryption.
TLS certificates can be generated using the following methods: CSR, PFX and PEM; each giving different
options for Encryption Key length. The table below lists the SIP TLS Encryption Key length support for the
various system components.
SIP TLS - Encryption Key Support by System Component
System Component
SIP Signaling
Management
LDAP
Certificate Configuration and Management
All Polycom devices used in a Maximum Security Environment require security certificates.
For more details see Certificate
Polycom, Inc.
Ultra Secure Mode
Key Generation Method
CSR
PFX / PEM
CSR
Management.
and Flags Specific to Maximum Security Environments
Key Length (bits)
2048
1024 or 2048
2048
Key generated by
Collaboration
Server
User
Collaboration
Server
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